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INA118的应用问题

目前开发一个传感器,前端是惠斯通全桥输出的两个电压信号,需要将两个电压的差值放大,放大之前做了一个滤波,请帮忙校队一下原理图。G1,G2的值很小为0.1到1mV之间,需要将其放大到3.3V以内让ADC能采样。